JP3058161U - Tank device for processing of coolant containing floating bubbles - Google Patents

Abstract

(57) [Abstract] (with correction) [Problem] To prevent malfunctions due to suction of floating bubbles of the discharge pump for recirculating coolant, reduce failure during operation of the machining base machine, and raise floating liquid to the coolant level. This prevents the barrier of oxygen by covering the air, thereby contributing to prolonging the life of the perishable coolant, and preventing the floating foam from overflowing the coolant tank device and contaminating the floor. A floating foam treatment tank attached to a main tank for storing a coolant for circulating uses a floating foam in the coolant and a floating weir in which an underflow and an overflow are combined to stop the floating foam on a liquid surface. This is accumulated and filled with the inclined ceiling plate 11 provided on the liquid surface, and the floating bubbles ejected from the outlet 12 of the inclined ceiling plate flow down on the inclined ceiling plate and are guided to the outlet 15. And liquefied by a defoaming device or the like, mixed into the main tank, and recirculated and used together with the stored coolant.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The floating foam treatment tank (hereinafter referred to as the treatment tank) of the present invention collects and discharges the floating foam generated in the dirty coolant, and accumulates the floating foam in a conventional coolant tank device as a method of defoaming. A small defoaming device is added to the weir, the inclined ceiling plate having a spout hole for discharging the filled floating bubbles, and the treatment tank for guiding and discharging the floating bubbles to a discharge groove connected to the inclined ceiling plate. Due to its simple and inexpensive structure, the floating bubbles in the coolant in a wide range such as coolant for cutting and grinding, cleaning liquid, quenching liquid, etc. can be easily treated and can be effectively used for recirculating the coolant. Device.

[0002]

[Prior art]

The generation of bubbles in the coolant is due to the liquid concentration of the coolant, decay, agitation by a pump, water spouting, and the impact of the liquid drop. One example of the conventional tank device is a processing mother machine (shown in FIG. 4). allowed to flow into the return dirty coolant from none) first the precipitation sediment tank 51 ₁ performs primary removal process containing sludge, then the magnetic separator 5 of 2 through residual fine sludge secondary removal processing performed by precipitation tank 51 ₂ Although than it is stored in the type of the coolant, is by the use state settling tank 51 _1, 51該浮on bubbles 53 generated in the _second liquid level is accumulated in the process, and finally to overflow from the tank 54 The discharge pump 55 may malfunction due to the suction of the residual foam in the coolant, or may malfunction due to malfunction of the coolant in the tank 54 due to oxygen cutoff. In order to control the floating bubbles, an antifoaming agent was usually added, or a device for absorbing and defoaming bubbles was attached.

[0003]

[Problems to be solved by the invention]

 As described above, the introduction of an antifoaming agent generally used as a treatment for floating foam is expensive because the antifoaming agent is expensive, the man-hours for the introduction cannot be ignored, and the introduction of the antifoaming agent is, for example, polishing. In the case of a grinding machine, there are drawbacks such as a decrease in grinding performance, and it is desirable to avoid using the defoaming agent if possible. The size of the tank is large, and it is often difficult to install it in a limited space on the tank. Therefore, there has been a demand for a treatment tank mechanism that can efficiently collect and discharge the floating bubbles without using the defoamer and avoiding the use of a large-sized foam absorbing and breaking device.

[0004]

[Means for Solving the Problems]

 The present invention has been made to solve the above-mentioned problem. A coolant tank device for purifying the dirty coolant for recirculation use is installed in the main tank for storing the coolant. The tank is equipped with a tank and is a tank device for treating coolant containing floating bubbles.

[0005] The means for treating floating bubbles in the coolant according to the present invention is a weir comprising a single or a plurality of underflows and overflows, and the floating bubbles are accumulated on the blocking liquid surface. The cooling foam is filled with the inclined ceiling plate provided on the liquid surface, and ejection holes from which the floating bubbles are ejected onto the inclined ceiling plate are provided at appropriate plural places on the inclined ceiling plate. It is a tank device for use.

[0006] Further, the means for treating floating bubbles in the coolant according to the present invention guides the floating bubbles ejected onto the inclined ceiling plate to a discharge groove connected to the inclined ceiling plate, and collects and discharges the floating bubbles. It is characterized by being a tank device for treating the coolant, which is equipped with a mechanism.

[0007] The means for treating floating bubbles in the coolant according to the present invention is a tank device for treating the coolant, which is provided with a defoaming device at a discharge outlet of a discharge groove for the floating bubbles. And

[0008]

[Operation]

 As described above, the tank device for treating the coolant containing floating bubbles according to the present invention performs the treatment of the dispersed bubbles contained in the dirty coolant used for the operation of the mother machine before flowing into the main storage tank. And the coolant enters the separation tank, which is a combination of an underflow and an overflow weir, and the dispersed bubbles rise to form bubbles, ie, floating bubbles, accumulate on the liquid surface, and are provided on the liquid surface. The floating bubbles are filled between the inclined ceiling plate and the liquid surface, and the floating bubbles are blown up from semi-chimney-shaped outlets provided at a plurality of appropriate positions on the inclined ceiling plate, and flow down on the inclined ceiling plate to flow down the inclined ceiling plate. The coolant enters the discharge groove connected to the plate, is guided to the discharge port according to the inclination of the discharge groove, is liquefied by the defoaming device immediately below, flows into the main tank, and is treated and purified in the separation tank. Is the main Is flowing into the tank is stored. If the underflow and the overflow weir are combined in a plurality of separation tanks and the treatment is performed by the same mechanism as described above, the purification degree can be further improved and the main tank can be used as clean coolant. It is stored and recycled by the discharge pump. On the other hand, the sludge settled and deposited in each of the separation tanks of the processing tank is scraped and discharged by an appropriate method from each of the scraping ports provided near the bottom of the processing tank.

[0009]

【Example】

An embodiment of the tank device for treating a coolant containing floating bubbles according to the present invention will be described with reference to FIGS. 1, 2, and 3. FIG. The treatment tank 1 has an inlet 2, an outlet 3, and a plurality of underflow weirs 4 _{1, 2 , 3} (abbreviations of 41 _, 4, _2, 4, _3, 4, and ₃ ) and overflow therein. _-There are separation tanks 6, ₁ , ₂ , ₃ , and _{4 which} are combinations of weirs 5, ₁ , ₂ , and ₃ , and the floating bubbles 10 accumulated on the liquid surface 7 of the separation tanks 6, ₁ , ₂ , ₃ , and ₄ are filled. room _{8 1,2, 3, 4} made of inclined ceiling plate 11 provided in a position overlying the total liquid level 7 in the processing tank 1, separation tank _{6 1,2,3} of the inclined ceiling plate _{11, At} a suitable position corresponding to ₄ , a plurality of semi-chimney-shaped jet ports 12 for jetting out a plurality of accumulated floating bubbles 10 are provided, and at the inclined lower end 13 of the inclined ceiling plate 11, the discharge grooves 14 are further inclined. A defoaming device 16 for liquefaction of the floating bubbles 10 is placed immediately below the discharge port 15 at the tip, and the liquefied floating 10 is flow into the main tank 17, also passes through the separation tank 6 ₄ purified coolant is flowing from the outlet 3 into the main tank 17, a discharge pump 19 which pumps the recycled use the working mother machine 18 main tank 17 The scraping port 20 installed above and provided near the bottom of each of the separation tanks 6, _{1, 2, 3,} and ₄ of the processing tank 1 is for scraping off the sludge by an appropriate method.

[0010] In Coolant tank apparatus 21 having such a structure, processing the dirty coolant used in the operation of the base machine 18 is allowed to flow from the inlet 2 of the processing tank 1, first partitioned into underflow weir 4 ₁ processing tank 1 the inner flow down, enters the separation tank 6 ₁ comprising the combination of the overflow weir 5 _1, the dispersion bubbles in the coolant accumulate on the liquid surface 7 becomes floating bubbles 10 emerging, inclined ceiling plate 11 filling the room 8 ₁ of floating bubbles 10, upward jetted from the inclined ceiling plate 11 separation tank 6 appropriate positions plurality of semi chimney jets 12 meet _1,2 provided in the can between the inclination The liquid flows down the ceiling plate 11 toward the discharge groove 14, further flows down according to the inclination of the discharge groove 14, and falls into a defoaming device 16 provided immediately below the discharge port 15, for example, a centrifugal separator, an air blower, or the like to liquefy. Then, it flows into the main tank 17. Meanwhile the coolant Ri exceeds a ride the separation tank 6 ₁ overflow weir 5 ₁ moves to the next separation tank _61, Note the residual fine dispersion bubbles make the floating boss cumulatively floating bubbles 10, the above-mentioned The floating bubbles 10 are collected and discharged in the same process as in the previous stage, and the degree of purification of the coolant is improved each time this process is repeated, and flows into the main tank 17 from the outlet 3 and is stored therein. It is pumped to mother machine 18 for recirculation use. Further, sludge 22 contained in the coolant accumulates in each of the separation tanks 6, ₁ , ₂ , ₃ and ₄ , so that the sludge 22 is discharged from the scraping port 20 by a manual operation or an automatic device (not shown) as appropriate. Discard at 23 mag. In addition, the defoaming device 16 processes only the collected floating bubbles 10, so that, for example, the dirty coolant is reduced in size as compared with a case where the dirty coolant is processed without the processing tank 1 of the present invention, and the above-described process is performed. Active defoaming devices such as centrifugal separators, air blowers, and spray devices are desirable, but not limited thereto, and simple boxes considering the capacity may be used. Although the above is an example in which the number of the separation tanks _{61 , 2 , 3 , 4} is four, this is not limited to one or more depending on the contents of the dirty coolant to be treated.

[0010]

[Effect of the invention]

 According to the present invention, floating bubbles generated in the coolant can be collected and discharged in the processing tank 1 for recirculating use of the coolant, so that the defoaming device 16 is reduced in size as described above. In addition, the malfunction of the discharge pump 19 due to the suction of the floating bubbles 10 can be prevented, and the breakdown during the operation of the working machine 18 can be reduced, and the floating bubbles 10 cover the liquid level 7 of the coolant. Oxygen blockage due to this can be prevented, contributing to the prolongation of the life of the perishable coolant, and furthermore, it has a great effect of eliminating overflow of the coolant tank device 21 to contaminate the floor and deteriorating the production environment. .

[Brief description of the drawings]

FIG. 1 is a perspective view including a partial cross section of a processing tank for collecting and discharging floating bubbles according to the present invention.

FIG. 2 is a sectional view taken along line AA in FIG. 1 of the processing tank for collecting and discharging floating bubbles according to the present invention.

FIG. 3 is an explanatory view of a tank device for treating a coolant containing floating bubbles according to the present invention.

FIG. 4 is a perspective view, including a partial cross section, showing an example of a conventional coolant tank device with a magnetic separator.

[Explanation of symbols]

1 ... Floating foam treatment tank (treatment tank) 2 ... Inlet 15 ...
Outlet 3 ・ ・ ・ Outlet 16 ・ ・ ・
Antifoaming device 4 _{1, 4 2,} 4 _{3 (4 1, 2, 3)} 17 ...
Main tank ... Underflow weir 18 ... Machining machine 5 _1, 5 _2, 5 ₃ (5 _{1 , 2, 3} ) ... Overflow weir 19 ...
・ Discharge pump 6 _1, 6 _2, 6 _3, 6 ₄ (6 _{1 , 2, 3, 4} ) ・ ・ ・ Separation tank 20 ・ ・ ・ Sweeping port 21 ・ ・ ・ Coolant tank device 7 ・ ・ ・ Liquid level 22 ・... sludge 8 _{1, 8 2,} 8 _{3, 8 4 (8 1, 2, 3, 4)} ... the room 23 ...
・ Receiving box 10 ・ ・ ・ Floating foam 51 _1,
51 ₂・ ・ Settling tank 11 ・ ・ ・ Sloped ceiling plate 52 ・ ・
・ Magnetic separator 12 ・ ・ ・ Squirt port 53 ・ ・
・ Floating bubble 13 ・ ・ ・ Descending end 54 ・ ・
・ Tank 14 ・ ・ ・ Drain groove 55 ・ ・
・ Discharge pump

Claims (4)

[Utility model registration claims] In a coolant tank apparatus for cleaning dirty coolant used for processing on a general metal working machine for recirculation use, a floating foam treatment tank is provided as a main tank for storing the coolant. A tank device for the treatment of coolant containing attached floating bubbles. 2. The floating foam treatment tank according to claim 1, wherein the floating foam is accumulated on a damming liquid surface by a single or plural underflow and overflow weirs. Between the sloping ceiling plate provided on the surface,
A tank device for treating a coolant containing floating bubbles, wherein a plurality of ejection holes from which the floating bubbles blow out onto the inclined ceiling plate are provided at appropriate places on the inclined ceiling plate. 3. The floating foam treatment tank according to claim 1, wherein the floating foam ejected on the inclined ceiling plate is guided to a discharge groove connected to the inclined ceiling plate, and a collecting and discharging mechanism for the floating foam is provided. Also, a tank device for treating coolant containing floating bubbles. 4. The floating foam processing tank according to claim 1, wherein a defoaming device is attached to an outlet of the discharging groove of the floating foam.